diff options
Diffstat (limited to 'include/linux/lockd/xdr.h')
| -rw-r--r-- | include/linux/lockd/xdr.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h new file mode 100644 index 000000000000..d7a5cc4cfa97 --- /dev/null +++ b/include/linux/lockd/xdr.h @@ -0,0 +1,108 @@ +/* + * linux/include/linux/lockd/xdr.h + * + * XDR types for the NLM protocol + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LOCKD_XDR_H +#define LOCKD_XDR_H + +#include <linux/fs.h> +#include <linux/nfs.h> +#include <linux/sunrpc/xdr.h> + +#define NLM_MAXCOOKIELEN 32 +#define NLM_MAXSTRLEN 1024 + +#define nlm_granted __constant_htonl(NLM_LCK_GRANTED) +#define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED) +#define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS) +#define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED) +#define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD) + +/* Lock info passed via NLM */ +struct nlm_lock { + char * caller; + int len; /* length of "caller" */ + struct nfs_fh fh; + struct xdr_netobj oh; + struct file_lock fl; +}; + +/* + * NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. + * FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to + * 32 bytes. + */ + +struct nlm_cookie +{ + unsigned char data[NLM_MAXCOOKIELEN]; + unsigned int len; +}; + +/* + * Generic lockd arguments for all but sm_notify + */ +struct nlm_args { + struct nlm_cookie cookie; + struct nlm_lock lock; + u32 block; + u32 reclaim; + u32 state; + u32 monitor; + u32 fsm_access; + u32 fsm_mode; +}; + +typedef struct nlm_args nlm_args; + +/* + * Generic lockd result + */ +struct nlm_res { + struct nlm_cookie cookie; + u32 status; + struct nlm_lock lock; +}; + +/* + * statd callback when client has rebooted + */ +struct nlm_reboot { + char * mon; + int len; + u32 state; + u32 addr; + u32 vers; + u32 proto; +}; + +/* + * Contents of statd callback when monitored host rebooted + */ +#define NLMSVC_XDRSIZE sizeof(struct nlm_args) + +int nlmsvc_decode_testargs(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_encode_testres(struct svc_rqst *, u32 *, struct nlm_res *); +int nlmsvc_decode_lockargs(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_decode_cancargs(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_decode_unlockargs(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_encode_res(struct svc_rqst *, u32 *, struct nlm_res *); +int nlmsvc_decode_res(struct svc_rqst *, u32 *, struct nlm_res *); +int nlmsvc_encode_void(struct svc_rqst *, u32 *, void *); +int nlmsvc_decode_void(struct svc_rqst *, u32 *, void *); +int nlmsvc_decode_shareargs(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_encode_shareres(struct svc_rqst *, u32 *, struct nlm_res *); +int nlmsvc_decode_notify(struct svc_rqst *, u32 *, struct nlm_args *); +int nlmsvc_decode_reboot(struct svc_rqst *, u32 *, struct nlm_reboot *); +/* +int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); + */ + +#endif /* LOCKD_XDR_H */ |